diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/build/changelog/changelog_10.rst | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/doc/build/changelog/changelog_10.rst b/doc/build/changelog/changelog_10.rst index 5d8bb7b68..089c9fafb 100644 --- a/doc/build/changelog/changelog_10.rst +++ b/doc/build/changelog/changelog_10.rst @@ -23,6 +23,22 @@ on compatibility concerns, see :doc:`/changelog/migration_10`. .. change:: + :tags: enhancement, sql + :tickets: 3074 + + Custom dialects that implement :class:`.GenericTypeCompiler` can + now be constructed such that the visit methods receive an indication + of the owning expression object, if any. Any visit method that + accepts keyword arguments (e.g. ``**kw``) will in most cases + receive a keyword argument ``type_expression``, referring to the + expression object that the type is contained within. For columns + in DDL, the dialect's compiler class may need to alter its + ``get_column_specification()`` method to support this as well. + The ``UserDefinedType.get_col_spec()`` method will also receive + ``type_expression`` if it provides ``**kw`` in its argument + signature. + + .. change:: :tags: bug, sql :tickets: 3288 |